Method for estimating a carrier leak, an estimator and...

Details Method for estimating a carrier leak, an estimator and... Method for estimating a carrier leak, an estimator and...

2006-10-31

2006-10-31

Mis, David (Department: 2817)

Modulators

Frequency shift keying modulator or minimum shift keying...

C375S303000

Reexamination Certificate

active

07129802

ABSTRACT:
The invention relates to a method of estimating a carrier leak making it possible to solve the accuracy degradation problem associated with a poor reception by the central carrier.A subject of said invention is a method of estimating a carrier leak consisting in:varying a complex gain Z applied to the received signal s between at least two predetermined values Z1and Z2;measuring the position (PD1, PD2) of the central carrier of the signal s demodulated for each applied gain (Z1, Z2);calculating at least a part of the carrier leak based on the measured positions (PD1, PD2) and the applied gains (Z1, Z2), the calculated carrier leak part (offset_mod) corresponding to the leak due to the modulator.

REFERENCES:
patent: 6028900 (2000-02-01), Taura et al.
patent: 6760300 (2004-07-01), Eberle et al.
patent: 2002/0145969 (2002-10-01), Zulfiquar
patent: 0 689 313 (1995-12-01), None

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